Behavior and microhabitat selection of the tortoiseshell limpet Testudinalia testudinalis in the northwest Atlantic intertidal zone

► The limpet Testudinalia testudinalis does not home as previously suggested. ► This limpet prefers vertical resting sites near but not necessarily on encrusting coralline algae. ► Testudinalia testudinalis prefers Clathromorphum circumscriptumas a food source.